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Touring Have a dream to ride a bike across your state, across the country, or around the world? Self-contained or fully supported? Trade ideas, adventures, and more in our bicycle touring forum.

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Old 01-23-05, 12:18 PM   #1
Portis
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I am not cross posting here. I posted this same question in the Road Cycling forum. It was good info. However as a prospective road bike owner i still have questions. I think my style of riding will be closer to touring than racing.

Using most of the online fit calculators, they recommend that i ride somewhere near 59 cm. The French fit on the Colorado Cyclist site, puts me on a 60-62.

So, for those of you that ride more like a tourer than a racer:

1. How tall are you?

2. What frame size do you ride? (if you ride multiple sizes, please list all of them- road bikes only)

3. What is your cycling inseam? (this is calculated by placing your bare feet about 8 " apart and standing against a wall. Place a book firmly up into your crotch and make sure the back of the book rests squarely against the wall. Then measure from the top of the book to the floor.)

4. What is your pants inseam?
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Old 01-24-05, 03:48 PM   #2
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I'm gonna have to do this in the next couple of days... I'm 6'2" but have a 32" inseam... and a long torso. should be interesting to see what bike I should actually be riding
D
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Old 01-24-05, 09:30 PM   #3
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IMO size has a lot to do with how you intend to use the bike. almost all sizing regimes I have seen are based on what a racer needs not a recreational or touring cyclist. Few of us ride like Connie Carpenter or Greg Lemond, On the flip side when was the last time you heard of either of them taking a 1500 mile tour carrying 40 lbs of kit? Racers generally want a flat back and to be stretched out for aerodynamics. They often have the bars several inches lower than the saddle. A tourist ( and most recreational cyclists)on the other hand generally wants higher bars, and the back more upright closer to a 45 degree angle. They often need the bars close to if not above saddle height.
But few shops size you according to what you plan to ride or even what is comfortable. They all size you on a frame that is 2-3cm small, Then you have to buy a high rise stem or a stem extension to get the bars up to a comfortable height. The old rule of thumb( french sizing ?) when I worked in bikeshops and before the compact frame sizing craze was inseam minus 9" for a 700c level top tube frame. that would leave you about 5-6" of seatpost showing. Standover height would almost have your crotch resting on the top tube. Rivendell has a similar sizing scheme and gives a better explanation of it. could it be the reason Rivendell owners like thier bikes so much is that they fit ?!

So using the old timey method: Floor to crotch I am a tad over 34 inches, if I subtract 9" I have 25" (~63 cm) A 63 allows me within the range of a normal road stem to raise or lower the bars above or below my saddle height . Yes 63cm is what I ride (almost 28 years) One caveat though is if you are sizing a cyclo cross bike for road use. The BB is usually a good 1/2- 3/4" or more higher than most road bikes so you need to go at least a centimeter or more smaller. Obviously if you going to cyclocross you would go down 2-3 more centimeters in size.

Using the old formula Someone like Doug who is my height but two inches shorter in the leg would ride a 58 cm but look for a top tube as long as he can find (61cm or longer )

Last edited by velonomad; 01-24-05 at 11:11 PM.
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Old 01-25-05, 12:33 AM   #4
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Height: 5"10"

Leg Length: 35 inches

slack's inseam: 32 inches

Preferred size bike for loaded touring: size 60 to size 62
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Old 01-25-05, 12:57 AM   #5
hoogie
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height: 6'4"
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bike sizes: Trek 520 .. 25"; Giant Yukon .. 21.5"; Thorn Nomad .. 595mm;
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Old 01-25-05, 09:41 AM   #6
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Quote:
Originally Posted by Dougmt
I'm gonna have to do this in the next couple of days... I'm 6'2" but have a 32" inseam... and a long torso. should be interesting to see what bike I should actually be riding
D
I have the same leg and torso dimensions, and it is a real struggle to find a frame that feels good. My personal favorite, in terms of fit, is a 25" Schwinn le Tour II, from the mid '70s. I cannot straddle the top tube, but it is very comfortable once I get going. I have noticed that bikes today seem a lot smaller for a given measurement, so a 61 cm seems a lot smaller than the 25". The real giveaway is the head tube. The head tube on a typical 61 cm is more like my old 23" Varsity's. Obviously some of the difference arises from measuring center to top instead of center to center.
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